problem 1: What do you mean by Environmental Standards? Give BIS standards of drinking water and industrial sewage and sewage discharge in surface water and public sewer.
problem 2: Illustrate the details of sources of water pollution.
problem 3: How industrial effluents affect the quality of water?
problem 4: How the domestic and municipal wastes affect the dissolved oxygen of a water body?
problem 5: Give significant characteristics of the industrial wastes.
problem 6: Illustrate the thermal pollution and how it influences the water quality of receiving water body?
problem 7: Water is the water borne diseases and describes how they spread?